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A Fracture Welding Process of Shaft Block Plate of Flat Uncoiler

A technology of welding process and core, which is applied in the field of welding auxiliary device and welding process for the fracture of the shaft stop plate of the flat uncoiler mandrel, which can solve the problems such as the difficulty of repairing the local missing block, achieve small space occupation, low investment cost, and reduce maintenance cost effect

Active Publication Date: 2022-05-27
ANHUI MA STEEL EQUIP MAINTENANCE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the defects in the background technology that the shaft stop plate of the flat uncoiler mandrel is broken and it is difficult to repair the local block, the present invention proposes a welding auxiliary device and welding process for the shaft stop plate fracture of the flat uncoiler mandrel. Shaft, flat uncoiler mandrel shaft stop plate breakage, partial missing blocks are repaired by multi-functional micro-arc additive manufacturing machine surfacing welding, which saves maintenance time, reduces maintenance costs, reduces downtime losses, and provides a reasonable combination of production. Assure

Method used

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  • A Fracture Welding Process of Shaft Block Plate of Flat Uncoiler
  • A Fracture Welding Process of Shaft Block Plate of Flat Uncoiler
  • A Fracture Welding Process of Shaft Block Plate of Flat Uncoiler

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Embodiment 1

[0046] like Figure 1 to Figure 5 As shown, the present invention is an auxiliary device for breaking and welding the baffle plate of a flat unwinding mandrel, which includes a front end fixing bracket 3 and a rear oblique end fixing bracket 4; The arc shape is matched with the shaft head of the mandrel to be welded and repaired; the rear inclined end fixing bracket 4 includes a main body supporting steel frame 41 in the shape of "H", and the main body supports the "H" shape of the steel frame 41 The upper part is welded with a shaft rod 43, and a supporting steel plate 44 is rotatably provided on the shaft rod 43. The middle part of the supporting steel plate 44 is provided with a shaft hole, and the sleeve is arranged on the shaft rod 43 and can be rotated left and right; The two sides of the main body supporting steel frame 41 are welded with “L” shaped side wing supporting steel frames 42 respectively.

[0047] During production, the front end fixing bracket 3 is made int...

Embodiment 2

[0051] The invention is a fracture welding process for a flat unwinding mandrel baffle plate. The shaft head (front end) of the mandrel 1 is cylindrical, and the shaft body (rear inclined end) is in the shape of a truncated cone. There is a fracture to be repaired in the baffle plate 2, and the mandrel 1 is placed horizontally on the fracturing and welding auxiliary device for the baffle plate of the flat unwinding mandrel described in Example 1, and the specific steps are as follows:

[0052] Step 1. Preparation before welding;

[0053] 1.1) Welding equipment: multifunctional micro-arc additive manufacturing machine and WS-400T manual argon arc welding machine;

[0054] 1.2), heating device: oxygen acetylene bottle and electric heating belt;

[0055] 1.3) Auxiliary facilities: angle grinder, file, hand hammer, flat shovel, mask, thermal insulation bucket, template, thermometer, magnifying glass, thermal insulation cotton;

[0056] Step 2. Welding process formulation;

[00...

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Abstract

The invention discloses a fracture welding auxiliary device for a flat uncoiler mandrel shaft retaining plate, which comprises a front end fixing bracket and a rear oblique end fixing bracket; the upper part of the front end fixing bracket is arc-shaped; the rear oblique end fixing bracket includes The main body supports the steel frame, and the two sides of the main body support steel frame are respectively fixedly provided with side wing support steel frames, and the upper part of which is rotatably provided with supporting steel plates. The invention also discloses a process of using the welding auxiliary device to weld and repair the broken part of the shaft stop plate of the flat uncoiler mandrel, by adopting multi-functional micro-arc additive manufacturing for the broken part of the shaft stop plate of the flat uncoiler mandrel Machine surfacing repair and manual argon arc welding repair save maintenance time, reduce maintenance costs, reduce downtime losses, and provide a guarantee for reasonable production.

Description

technical field [0001] The invention belongs to the technical field of welding equipment and welding processes, and relates to an auxiliary device and a welding process for the fracture welding of a flat uncoiler mandrel baffle plate. Background technique [0002] Most of the temper uncoilers used in Maanshan Iron and Steel Cold Rolling Plant are imported equipment from Italy. The designed annual output is 825,000 tons / year, the annual operation time is 6800h, and the thickness of the production specification products is 0.3-2.5mm, the width is 900-1.575mm, and the thickness of the steel coil is 0.3-2.5mm. The inner diameter of the coil is 610mm, the outer diameter of the steel coil is increased by 1.900mm, and the maximum coil weight is 28.35tonne (ton). After more than ten years of production of this type of equipment, during the operation of the unit, the shaft head bolts of the unwinding mandrel have been loosened and broken many times. phenomenon, which seriously affect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/04B23K9/235B23K9/32B23K37/053
CPCB23K9/048B23K9/235B23K9/32B23K37/053
Inventor 范兴海杨西涂俊魁章锐张婷婷雷杰杨守兴陶俊张玉
Owner ANHUI MA STEEL EQUIP MAINTENANCE CO LTD